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The WA cytoplasm which leads to CMS in rice poses problem of poor panicle exertion. Hence foliar application ofgibberellic acid (GA3) at the start of panicle emergence has been widely adopted as an essential technique for enhancingpanicle exertion in China and has been recognized as an integral component of hybrid rice seed production. An experimentwas conducted to study the effect of GA3 and other chemicals to economize the dose of GA3 for higher grain yield in CMSlines in rice. The highest seed yield of CMS lines can be obtained with the application of GA3 30 g / ha + Nutragold. Thesame treatment also recorded the highest productive tillers per plant, panicle length, panicle exertion per cent and seedsetting per cent. Application of GA3 alone or in combination with boric acid, KH2PO4, Nutragold and Nutragold aloneimproves the expression of floral characters promoting better seed set on CMS parent.